Sets macOS to continuously scan for new wifi networks. When a shell* wifi network appears, it tries to connect automatically. Afterwards the script checks for versioning information and performs multiple http requests to configure the shellys accordingly.

auto-adopt-shelly.sh

#!/bin/bash
#
# Automatically connects to Shelly-Wifis and performs the initial setup (on macOS).

while true; do
    # Connect to Shelly wifi
    echo "Started scanning for shelly Wifi networks"
    shellySsid=""
    while [ -z "$shellySsid" ]; do
        shellySsid=$(/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -s | grep shelly | awk '{$1=$1};1' | grep -io '[a-zA-Z0-9\-]\{10,\}' | head -n 1)
    done
    echo "Joining network $shellySsid"
    if [[ -z $(networksetup -setairportnetwork en0 $shellySsid) ]]; then
        # Check Shelly device information
        deviceInfo=""
        while [ -z "$deviceInfo" ]; do
            deviceInfo=$(curl http://192.168.33.1/shelly -m 5 -s)
        done
        echo "Got device info $deviceInfo"

        # Apply configuration based on shelly type
        function ensure_requests () {
            for url in "$@"; do
                until $(curl --output /dev/null --silent --head --fail "$url"); do
                    echo "Request to url '$url' failed. Retrying."
                done
            done
        }
        if [[ $deviceInfo == *\"type\":\"SHSW-25\"* ]]; then
            urls=(
                "http://192.168.33.1/settings/?mode=roller"
                "http://192.168.33.1/settings/?max_power=2300"
                "http://192.168.33.1/settings/sta?enabled=1&ssid=[PUT YOUR SSID HERE]&key=[PUT YOUR WIFI KEY HERE]"
            )
            ensure_requests "${urls[@]}"
            echo "Setup for Shelly 2.5 completed successfully."
        fi
        if [[ $deviceInfo == *\"type\":\"SHDM-2\"* ]]; then
            urls=(
                "http://192.168.33.1/settings/light/0?default_state=last"
                "http://192.168.33.1/light/0?turn=off&brightness=100"
                "http://192.168.33.1/settings/light/0?btn_type=toggle"
                "http://192.168.33.1/settings/?transition=0"
                "http://192.168.33.1/settings/sta?enabled=1&ssid=[PUT YOUR SSID HERE]&key=[PUT YOUR WIFI KEY HERE]"
            )
            ensure_requests "${urls[@]}"
            echo "Setup for Shelly Dimmer 2 completed successfully."
        fi
    else
        echo "Could not connect to $shellySsid"
    fi
done